Helmet cooling device filter



FIG. 1 is a perspective view of the helmet cooling device filter of the present invention;

FIG. 2 is a top view of the helmet cooling device filter of FIG. 1, the bottom view being a mirror image of the top view shown;

FIG. 3 is a left side view of the helmet cooling device filter of FIG. 1;

FIG. 4 is a right side view of the helmet cooling device filter of FIG. 1;

FIG. 5 is a front elevational view of the helmet cooling device filter of FIG. 1; and,

FIG. 6 is a rear elevational view of the helmet cooling device filter of FIG. 1.

The broken lines shown in the drawings are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

I claim the ornamental design for a helmet cooling device filter, as shown and described. 